The Returned was watched by an average of 1.5 million viewers on Channel 4 on Sunday night. Photograph: Channel 4

Channel 4's French subtitled supernatural drama The Returned opened with an average of 1.5 million viewers on Sunday night.

The Returned, which featured an entire ad break in French with subtitles, attracted an average audience share of 7.2% from 9pm. This was 14.5% down on the slot average for the past three months.

Competition included David Suchet's final turn in Poirot after 24 years and 70 episodes, which averaged 4.8 million and a 21.7% share over two hours from 8pm on ITV.

Other 9pm shows included BBC1's drama-doc D-Day: The Last Heroes (2.3 million/10.9%), new BBC2 documentary series Rise of the Continents (1.7 million/7.8%) and Channel 5 movie The Next Three Days (1.3 million/7.4%).

Earlier, BBC1's best rating programme of the day came from live coverage of the Canadian Formula One Grand Prix, which averaged 4.6 million viewers and a 23.6% audience share over nearly three hours from 6.15pm. Sky Sports F1 averaged 624,000 and 3.3% for its live coverage of the same event from 5.30pm.

ITV's live coverage of Rafael Nadal's record breaking eighth French Open tennis victory averaged 1 million viewers and a 9.9% share over five hours from 1.30pm.

The top rating multichannel show of the day was ITV2's The Only Way Is Essex, which averaged 1.1 million and a 6.3% share from 10pm.

All ratings are Barb overnight figures, including live, +1 (except for BBC channels) and same day timeshifted (recorded) viewing, but excluding on demand, or other – unless otherwise stated. Figures for BBC1, ITV, Channel 4 and Channel 5 generally include ratings for their HD simulcast services, unless otherwise stated

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